I50/B1-21 Vertical scale: 400

F52/B1-55 Vertical scale: 500

No abstract available

60% coverage south D53/B1-92 Vertical scale: 10

H52/B1-46 Contour interval: 10

I50/B1-24 Vertical scale: 40

No abstract available

G51/B1-74

In January 1974 aerial observations were made of the very severe flooding which occurred in the low-gradient plains country adjacent to the southern Gulf of Carpentaria. Floodwaters were derived from two sources, the extensive river channel network throughout the plains mostly carried silty water which originated from hinterland regions, while the plains surfaces were flooded with clear water derived from local rainstorms. Runoff of clear storm water caused active erosion around peripheries of planar interfluves on the clay plains. There was generally no flood- water erosion or deposition in the sandy plains. Flooding was extensive on tidal mudflat areas, particularly behind beach ridge remnants which inhibited runoff. Despite the severity of flooding, the overall lack of erosion and overbank flooding suggests that landforms of the fluviatile plains were developed under conditions of greater runoff than prevail during normal wet-season flooding. The major landform features were probably developed In the Late Pleistocene and have not been substantially modified since then.

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